Triumph 1500 vs Triumph T100 ss: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Triumph 1500
74%
MOT pass rate · 37,142 vehicles
Triumph T100 ss
98%
MOT pass rate · 5 vehicles
Verdict: On MOT pass rate the Triumph 1500 (74%) and Triumph T100 ss (98%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Triumph 1500 | Triumph T100 ss |
|---|---|---|
| MOT pass rate | 74% | 98% ✓ |
| MOT failure rate | 26% | 2% ✓ |
| Faults & advisories per test | 2.3 | 0.1 ✓ |
| Dangerous-fault share | 0% | 0% |
| Average mileage | 58,068 mi | 27,560 mi |
| Sample size (vehicles) | 37,142 | 5 |
Most common faults
Triumph 1500
- Parking brake: efficiency below requirements (3.7.B.7)
- Windscreen washer provides insufficient washer liquid (8.2.3)
- Nearside Rear wheel bearing has slight play (2.6.2)
- Offside Rear wheel bearing has slight play (2.6.2)
- Brakes imbalanced across an axle (3.7.B.5b)
- Oil leak
Triumph T100 ss
- Front Roller brake test indicates slight fluctuation of brake effort (3.3.A1d)
- Rear Roller brake test indicates slight fluctuation of brake effort (3.3.A1d)
- Throttle has a significant change in engine speed whilst moving the steering from lock to lock (2.1.4)
- Nearside Rear Upper Rear suspension bush has slight free play (2.4.A2a(i))
- Front wheel bearings have slight free play (2.3.5b)
- Oil leak
Reliability FAQ
On MOT pass rate the Triumph 1500 (74%) and Triumph T100 ss (98%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Triumph 1500 report Full Triumph T100 ss report Most reliable cars
Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.